A man drives a nail into the wall by hitting it with a hammer with a force of 30N.

A man drives a nail into the wall by hitting it with a hammer with a force of 30N. What pressure does the nail produce when hitting if the area of its tip is 0.001 cm2.

The pressure of the nail when hitting is the ratio of the force with which a person hits the nail with a hammer, to the value of the area of the nail tip.
Hence:
P = F / S, where P is the pressure of the nail on the wall (Pa); F – impact force (F = 30 N), S – nail tip (S = 0.001 cm ^ 2 = 1 * 10 ^ -7 m ^ 2).
Hence:
P = F / S = 30 / (1 * 10 ^ -7) = 300,000,000 Pa = 0.3 * 10 ^ 9 Pa = 0.3 GPa.
Answer. The nail produces a pressure of 0.3 GPa.